281097180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^2$

素因数の和:297

約数の個数: 216

約数和(自身を含む): 1057501536

約数和(自身を除く): 776404356

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 131, 140, 156, 180, 182, 195, 210, 234, 252, 260, 262, 273, 315, 364, 390, 393, 420, 455, 468, 524, 546, 585, 630, 655, 780, 786, 819, 910, 917, 1092, 1170, 1179, 1260, 1310, 1365, 1572, 1638, 1703, 1820, 1834, 1965, 2340, 2358, 2620, 2730, 2751, 3276, 3406, 3668, 3930, 4095, 4585, 4716, 5109, 5460, 5502, 5895, 6812, 7860, 8190, 8253, 8515, 9170, 10218, 11004, 11790, 11921, 13755, 15327, 16380, 16506, 17030, 17161, 18340, 20436, 23580, 23842, 25545, 27510, 30654, 33012, 34060, 34322, 35763, 41265, 47684, 51090, 51483, 55020, 59605, 61308, 68644, 71526, 76635, 82530, 85805, 102180, 102966, 107289, 119210, 120127, 143052, 153270, 154449, 165060, 171610, 178815, 205932, 214578, 223093, 238420, 240254, 257415, 306540, 308898, 343220, 357630, 360381, 429156, 446186, 480508, 514830, 536445, 600635, 617796, 669279, 715260, 720762, 772245, 892372, 1029660, 1072890, 1081143, 1115465, 1201270, 1338558, 1441524, 1544490, 1561651, 1801905, 2007837, 2145780, 2162286, 2230930, 2402540, 2677116, 3088980, 3123302, 3346395, 3603810, 4015674, 4324572, 4461860, 4684953, 5405715, 6246604, 6692790, 7207620, 7808255, 8031348, 9369906, 10039185, 10811430, 13385580, 14054859, 15616510, 18739812, 20078370, 21622860, 23424765, 28109718, 31233020, 40156740, 46849530, 56219436, 70274295, 93699060, 140548590, 281097180]

約数ペア:

[(1, 281097180), (2, 140548590), (3, 93699060), (4, 70274295), (5, 56219436), (6, 46849530), (7, 40156740), (9, 31233020), (10, 28109718), (12, 23424765), (13, 21622860), (14, 20078370), (15, 18739812), (18, 15616510), (20, 14054859), (21, 13385580), (26, 10811430), (28, 10039185), (30, 9369906), (35, 8031348), (36, 7808255), (39, 7207620), (42, 6692790), (45, 6246604), (52, 5405715), (60, 4684953), (63, 4461860), (65, 4324572), (70, 4015674), (78, 3603810), (84, 3346395), (90, 3123302), (91, 3088980), (105, 2677116), (117, 2402540), (126, 2230930), (130, 2162286), (131, 2145780), (140, 2007837), (156, 1801905), (180, 1561651), (182, 1544490), (195, 1441524), (210, 1338558), (234, 1201270), (252, 1115465), (260, 1081143), (262, 1072890), (273, 1029660), (315, 892372), (364, 772245), (390, 720762), (393, 715260), (420, 669279), (455, 617796), (468, 600635), (524, 536445), (546, 514830), (585, 480508), (630, 446186), (655, 429156), (780, 360381), (786, 357630), (819, 343220), (910, 308898), (917, 306540), (1092, 257415), (1170, 240254), (1179, 238420), (1260, 223093), (1310, 214578), (1365, 205932), (1572, 178815), (1638, 171610), (1703, 165060), (1820, 154449), (1834, 153270), (1965, 143052), (2340, 120127), (2358, 119210), (2620, 107289), (2730, 102966), (2751, 102180), (3276, 85805), (3406, 82530), (3668, 76635), (3930, 71526), (4095, 68644), (4585, 61308), (4716, 59605), (5109, 55020), (5460, 51483), (5502, 51090), (5895, 47684), (6812, 41265), (7860, 35763), (8190, 34322), (8253, 34060), (8515, 33012), (9170, 30654), (10218, 27510), (11004, 25545), (11790, 23842), (11921, 23580), (13755, 20436), (15327, 18340), (16380, 17161), (16506, 17030)]